Paul:
I get it. My first AS/400 has less than 1.5Tb and we ran the entire
enterprise on it. But just like back when I was running that box, we did
not have email, blogs, and lists like Midrange-L, we thought 100Mb was quite
a bit of storage. Now things have changed.
One change: The cost per Gb of storage has come WAAAYYYY down. You are
paying less for that 1.5Tb drive than you did for the 9335, 850Gb on each
drive or the 9336/9337 drive enclosures......(minus the drives)
So at 1.5b for the drive we are talking about far less money than "back in
the day...."
--
Jim Oberholtzer
Agile Technology Architects
-----Original Message-----
From: MIDRANGE-L <midrange-l-bounces@xxxxxxxxxxxx> On Behalf Of Rob Berendt
Sent: Friday, December 14, 2018 11:42 AM
To: Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>
Subject: RE: P9 with dual EJ14 - Raid5 and Hot Spare questions
I know Paul, it is rather hard to wrap your head around.
What I get frustrated with are all the people who want IBM to continue to
make smaller drives so that it's easier to justify multiple disks. They
can't seem to get themselves to justify more than three drives solely on
performance. Yes running at only 15% full may be a mind bender for those
migrating from 15 year old equipment.
Basically it's this. Bigger disk drives are being made. The market for
smaller sizes rapidly shrinks. Disk manufactures would rather retool
existing facilities to make the bigger drives than to create an expansive,
and expensive, "clean room" environment to make the new drives. So
manufacture of smaller drives comes to a screeching halt.
And having more space than their previous system had in it's entireity tied
up in "hot spare" alone just fries their mind.
Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail
to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com
From: "Musselman, Paul" <pmusselman@xxxxxxxxxxxxxxxx>
To: "Midrange Systems Technical Discussion" <midrange-l@xxxxxxxxxxxx>
Date: 12/14/2018 11:05 AM
Subject: RE: P9 with dual EJ14 - Raid5 and Hot Spare questions
Sent by: "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>
Jim Oberholtzer wrote (in part):
"... The real question to ask is: One drive is at most 1.5TB. ... So, are
two more days of wrangling it around worth the recovery of such a small
amount of storage, part of which gets burned up by RAID Striping anyway? I
highly doubt it."
Just think about that last statement, "...such a small amount of storage."
When did 1.5 TB become 'small' storage? (;
Paul E Musselman
PaulMmn@xxxxxxxxxxxxx
midrange.com
